Welding apparatus



INVENTOH.

Patented Apr. 11, 1922.

3 SHEETS-SHEET i).

W. P. SHIPIVUXN.

WELDING APPARATUS.

APPLICATION FILED 1AN.13,1921.

W. P. SHIPIVIAN. WELDING APPARATUS. YAPPLICATION FILED JAN. 13, 1921.

Patented Apr. 11, 1922..

3 SHEETS-SHEET 2.

INVENTOB.

W. P. SH-IPIVAN.

WELDING APPARATUS.

`APPL|CATION FILED JAN. I3, 1921.

Patlted Apr. 11, 1922.

3 SHEElS-SHEET 3.

INVENTOR.

, unirse srs WrLLrAiyi `I. si11r1ri11\,i` or rirmsnuncrn, PENNSYLVANIA, assieNon To maw-KNOX coMrnNYl oF HoBoKEN, EENNsYLvaNiA, A CORPORATION or NEW JERSEY.

` WELDING ABPAEATUS.

Application filed January 13, 1921. rseriai No. 436,901.

To'aZZ whom t may concern.'

Be it know-n that I, l/VILLIAM RSHmMAN, residing at Pittsburgh, Allegheny County, Pennsylvania,have invented a new and usefulli'npi'ovement in Welding Apparatus,.of

'- which the following is a full, clear, and exe paratus, and more particularly to apparatus which has been especially designed for use in the manufacture of large sheet metal ves sels or receptacles, such as annealing boxes and the like, Y y

The objectv of the invention is to provide apparatus of this character by means of Vwhich the work can be rapidly and thoroughly done, and in which the amount of manual labor required is reduced to a minimum.l

VThe particular nature of my invention will be best understood'fby reference to the accompanying drawings, in which 1 have Yshown a preferred embodiment thereof, and which will now be described, itbeing pre-V mised, however, that various changes can be made in the details of construction, arrangement and combinationof the several parts, without departing from the spirit and scope of my invention as defined in the appended claims.: f i' The form of my trated in the accompanying' drawings has been particularly designed for use in welding the top to the body portions fof-sheet metal annealing boxes. F or such purposes, I prefer to provide the apparatus with two different anvils, one of these anvils being used in welding thel longer dimensions of the boxes, while the other is used in welding the shorter dimensions. I have shown the longer anvil v2 as mounted upon thefree end portions of beams 3 which are pivoted at their opposite end portions, at 4, to suitable supports 5. Each -pair of these beams, at van intermediate portion of their length,

plan' view of thesame;Y

invention which is illus' is carried' upon lthe plunger 6 vof a power cylinder-"7,.the two power cylinders being designed to be. actuated in lunison to raise and lower the anvil 2 to andfrom gits' operative position. For the purpose of limiting the stroke of the Vplunger 6, I provide -slot-y vted links 8 pivoted at 9.at their lower ends and havingt-heirvslots engaging pinsv 10 0n the plunger. i

[Specification of Letters Patent. Patented `Apr., 1922.

The shorter anvil 11`is arranged at` one side of the longer anvil2 and Vis carried upon a. single pair of beams-'12, similar to one pair of beams 3 before described, and supported at an intermediate point upon vthe plunger 13of a power cylinder 14.1 Links u 15, similar to the links 8, are provided for limiting the stroke of the plunger 13. Y f 16 designates a horizontally Vextending v overhead support which,in the present instance,` is" shown as consisting of a boxe Vgiider .supported at its ends upon the verti:

cal posts or columns .1'7. and having tracks 18 on lts upper surface. Mounted to move on these tracks is 2te-hammer' carriage 19 hav.`

ing a depending' frame20, in the Ylower portion of which is mounted a power hammer 21 of any usual or suitable construction. j This power hammer is capable of transverse adjustment, its carriage 22 being. mountedV on the guides 23 of said depending frame.

The carriage 22 may be actuated by :any-

suitable means, such as the screwl 24 having Y the handwheel' 2.5. 26 designates yany .suite able control lever for the power hammer;

For vthe purpose of Y'actuating the car@ riage 19,v l haveshownz-a d'oulfile acting? power cylinder 27 having apiston'23 therein, this power cylinder being. mounted withVV :in the box-,girder 16.

YThe piston 2.8- has its rod orsrplunger 29`extcnding lthrough both ends `of the cylinder.

30 designates cables which are yeach xedlyconnected at V5 Y oneY end tothe hammer carriage. 19,'as' l shownj a-t31; .the oppositeiend portions of.v

each o-f these cables being' carried over-a 5 Y Vguide pulley 32 and thence downwardly and around a. set of sheaves 33 and 34. `The sheave 34 of each set is connected to oneend y of the piston rod 29. The arrangement Vof v sheaves is such that a relatively short move-ly Y ment of the piston 28`w1illl effect an increased movement ofthe carriage 19.' The overhead support 16 spans both of the anvils and the carriage 19 is arranged to be moved so as to enable the hammer to be used with both anvils. This range oi movement is readily provided for by the mea-ns above described.

The operationwill be readily understood. The vessel or receptacle to be welded is placed over one of the anvils, in the manner shown in Figures l and Suitable heating means of well known character are applied to the portions of the metal to be welded, and the hammer is manipulated to effect welding. After all the welds4 have been made of one dimension, the receitacle is transferred to the other anvil and the ren maining welds are t-here made in a similar manner.

Any suitable means, such as one or more electromagnets 35, may be provided for holding the object being welded in Xed position during a welding operation.

The advantages of `my invention will be apparent since it'provides a simple arrangement of apparatus by which the worlr of welding joints or seams in relatively large sheet metal hollow structures can Vbe rapidly and thoroughly performedwith a minimum of manual labor.

I claim:

l. TWelding apparatus comprising a support, a member pivotally carried by said support, an anvil mounted on said member, means for raising and lowering said member, and means for limiting said raising movement, substantially as described.

2. Welding apparatus comprising a support, an anvil, a member having the anvil mounted upon one end portion thereof and pivoted at its opposite end portion to said support, and means engaging said member for raising and lowering the anvil, substantially as described.

3. lelding apparatus comprising a support, a member pivoted to said support at one end, an anvil mounted-upon the opposite end of said member, and a power cylinder having its plunger engaging and supporting the free end Orsaid member, substantially as described.

L lVelding apparatus comprising a support, a member pivoted at one end to said support, an anvil mounted upon the oppo site end of said member, and a power cylinder having its plunger engaging and supportingV the free end of vsaid member, to-

gether with means for limiting the stroke ot' said plunger, substantially as described.

5. Welding apparatus comprising a vertiq cally movable anvil, a carriage mounted for longitudinal movement above the anvil, a vertically reciprocable power hammer on said carriage, and separate fluid pressure means for moving said anvil and said carriage, substantially as. described.

6, lVelding apparatus comprising a vertically movable anvil, carriage mounted for longitudinal movement above the anvil, and a vertically reciprocable power hammer' on said carriage, said hammer being mounted for transverse movement on said carriage, substantially as described.

7. Welding apparatus comprising a pair of vertically movable anvils arranged-side by side, an overhead support, a carriage mounted for travel on said support from a position over one of said anvils to a position over the other of said 'anvils, and a ver# tically reciprocable power hammer on said carriage, substantially as described.

8. Welding apparatus comprising an overhead support, a carriage mounted thereon, vertically reciprocable power hammer mounted on the carriage, a power cylindei and piston for -actuating the carriage, and movement multiplying connections between the piston of said cylinder and said earriage, substantially as described.

9. vv`i7elding apparatus comprising a pair of vertically movableV anvils of different dimensions arranged side by side for successive engagement with thevsame piece of work, an overhead support, a carriage mounted lior travel on said support .ironia position over'one ol" said anvils to a position over the other olsaid anvils, and. a vertically reciprocablepower hammer on Vsaid carriage, substantially as described.

10. vhWelding apparatus comprising apair of vertically movable anvils arranged sideby side, an overhead support'extending above both of said anvils, a carriage mounted for travel on said support from a position over one of said anvils to a position over the other of said anvils, and a vertically reciprocable power hammer on said carriage, substantially as described.

ln testimony whereof l have hereunto set my hand. l

YVILLIAB'I SHIPMAN. 

